William march



(No Model.)

W- MAR OH.

BOLT OR ROD UTTBR' N0- 518'615- Patented Apr. 24, 1894I UNITED STATESPATENT OFFICE.

WILLIAM MARCH, OF LONDON, ENGLAND.

BoLT oR 'Roo cu'rTER.

SPECIFICATION forming part of Letters Patent No. 518,615, dated April24, 1894.

Application file January 9,1894. Serial No. 496,313. (No model.)

To all whom it may concern:

Beit known that I, WILLIAM MAROH, mechanical engineer, a subject of theQueen of Great Britain and Ireland, and a re'sdent of 69 Adelaide Road,South Hampstead, London, 1n the county of Middlesex, England, haveinvented a certain new and useful Improvement in B olt or Rod Cutters,of which the followmg 1s a specification.

This invention has for its object the cuttlng of metal bolts and rods orother such like materials.

The tool consists of two flat steel lever cutting parts both of whichare sharpened at their inner edges and are pivoted together by means ofset screws b' 132 which pass through them and through a pair of linkplates b, one on each side of the blades.

with that of the other by their being furnlshed with teeth which allowthem to be geared together just-where the cutting edges end at c, theteeth of the same being covered by the link plates before mentioned.Each of these lever cutters is operated by a powerful lever handle d,fulcrumed at g, and actlng on the end of the cutting lever. At thecutter end of each handle is a swivel jointe', which receives theprolonged ends a' of one of the pivoted lever cutting parts a, which issecured thereto by a set screw or bolt. The handles are connected by apair of jointed eyebolts f, which are screwed into or pass through themin such a way as to be adjustable. The set screw or bolt g, which unitesthese eye-boltsforms the fulcrum of the lever handles. The object ofconnecting these handles by jointed eye-bolts is to allow compensationfor the wear of the cutters, the knife edges of which are brought nearertogether in proportion as their prolonged ends a' are forced asunder byadj usting the eyebolts after liberating them by removing the fulcrumset screw g.

I will now describe the invention with referencetotheaccompanyingdrawings,inwhich- Figure 1, shows a plan view of my boltcutter. Fig. 2, shows a side view of Fig. 1, with the cuttingfbladeshown in section. Fig. 3, shows an enlarged plan view of the head of thecutter, the link plate b, being broken off to display the cog teeth bywhich the action The movement-` of each cutter is made to correspondexactly c, c, are the oog teeth below the linkiplates d, d, are thelever handles Operating the ends of the lever cutters a.

e, 82, are eyes or sockets formed in the cutter end of the handles d, d,for receiving the ends f, f, of the fulcrum bolts g, and of the stopbolts 'i respectively. In these sockets female screw threads can beformed or bolts passing through the handles with a nut on each side canbe employed.

c', e', are bolts forming the pivot connccti ing the handles to thecutters.

f, f, are two adjustable` screws which engage with the holes e, e. Onthe ends of these scl'ews, eyes h, h, are formed and receive the setscrew g, forming the fulcrum of the first lever or handle.

i, are two set screws for regulating the travel of the handles d, d, andstopping them at the required distance.

Although this tool is on the compound lever or combination of leversprinciple, I do not claim this as a novelty, as I am aware that it waspatented in 1870, No. 102,006, in 1872, No. 126,384, and again in 1877,No. 188,133. The compound level' was therefore no novelty in subsequentpatents although claimed therein.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is-- In a bolt orrodcutter the combination with thetwo levers carrying the cutters of theeye bolts adj ustably secured to the said levers and pivotally connectedtogether, substantially as described. i

In witness whereof I have' hereunto set my hand in presence of twowitnesses.

, WILLIAM MARCH.

Witnesses:

HENRY E. D01), ALBERT W. MATHYs.

